Hi and welcome. I'm absolutely no expert on this, because I haven't taken Tamoxifen. I know that some oncologists/drs prescribe Ovestin along with Tamoxifen, because the Tamoxifen 'mops up' any estrogen from the Ovestin. I also understand that a miniscule amount of estrogen is absorbed from the Ovestin, so even without Tamoxifen it maybe perfectly ok. But BC is a very imperfect world, and even if you do find info online, it's often conflicting. Can you talk to an oncologist about your concerns? Sorry not to be of any more help - I hope that others may be. Best wishes, Pam
